chore(prep): shared groundwork for the Sprint-2 parallel batch

第二批（T6~T11）协调提交：
- 迁移 0005：kb 七表（entity/relation/rule/chunk vector1024+tsv 生成列/
  asset/color/gap），HNSW+GIN 索引，FK 级联
- ORM：七个 Kb* 模型（pgvector Vector/TSVECTOR/Computed）
- 配置：检索与 embedding、华为 JWKS、短信全参数组
- 错误码：40110/40111/42910/42911/61000
- 骨架路由：kb.py + auth_sms.py（已注册）；依赖：tencentcloud-sdk-python-sms
  + spike extra（onnxruntime/opencv）；gitignore：models/ 与 spike 输出

pyproject.toml

@@ -21,9 +21,15 @@ dependencies = [
     "orjson>=3.10",
     "prometheus-client>=0.21",
     "cos-python-sdk-v5>=1.9.44",
+    "tencentcloud-sdk-python-sms>=3.1.153",
 ]
 
 [project.optional-dependencies]
+spike = [
+    # 算法验证 SPIKE（T-P0-10/12/16）专用；模型文件在 models/（已 gitignore）
+    "onnxruntime>=1.20",
+    "opencv-python-headless>=4.10",
+]
 dev = [
     "pytest>=8.3",
     "pytest-asyncio>=0.24",